This is a high quality compatible HP Q3960A-Q3963A Rainbow Pack Laser Toners compatible with the following printers:Hewlett Packard Color LaserJet Printers:HP Color LaserJet 2550, HP Color LaserJet 2550L, HP Color LaserJet 2550LN, HP Color LaserJet 2550n, HP Color LaserJet 2800, HP Color LaserJet 2820, HP Color LaserJet 2840The Black has a page yield of 5000 all three colours yield 4000Using a compatible Laser Toner gives you excellent printout quality without the high prices!Images used are for illustration purposes only.